/*
 * Copyright (C) 2005-2011 MaNGOS <http://getmangos.com/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _MODELINSTANCE_H_
#define _MODELINSTANCE_H_

#include <G3D/Matrix3.h>
#include <G3D/Vector3.h>
#include <G3D/AABox.h>
#include <G3D/Ray.h>

namespace VMAP
{
	class WorldModel;
	struct AreaInfo;
	struct LocationInfo;

	enum ModelFlags
	{
	    MOD_M2 = 1,
	    MOD_WORLDSPAWN = 1 << 1,
	    MOD_HAS_BOUND = 1 << 2
	};

	class ModelSpawn
	{
		public:
			//mapID, tileX, tileY, Flags, ID, Pos, Rot, Scale, Bound_lo, Bound_hi, name
			G3D::uint32 flags;
			G3D::uint16 adtId;
			G3D::uint32 ID;
			G3D::Vector3 iPos;
			G3D::Vector3 iRot;
			float iScale;
			G3D::AABox iBound;
			std::string name;
			bool operator==(const ModelSpawn & other) const { return ID == other.ID; }
			//G3D::uint32 hashCode() const { return ID; }
			// temp?
			const G3D::AABox & getBounds() const { return iBound; }


			static bool readFromFile(FILE* rf, ModelSpawn & spawn);
			static bool writeToFile(FILE* rw, const ModelSpawn & spawn);
	};

	class ModelInstance: public ModelSpawn
	{
		public:
			ModelInstance(): iModel(0) {}
			ModelInstance(const ModelSpawn & spawn, WorldModel* model);
			void setUnloaded() { iModel = 0; }
			bool intersectRay(const G3D::Ray & pRay, float & pMaxDist, bool pStopAtFirstHit) const;
			void intersectPoint(const G3D::Vector3 & p, AreaInfo & info) const;
			bool GetLocationInfo(const G3D::Vector3 & p, LocationInfo & info) const;
			bool GetLiquidLevel(const G3D::Vector3 & p, LocationInfo & info, float & liqHeight) const;
		protected:
			G3D::Matrix3 iInvRot;
			float iInvScale;
			WorldModel* iModel;

#ifdef MMAP_GENERATOR
		public:
			WorldModel* const getWorldModel();
#endif
	};
} // namespace VMAP

#endif // _MODELINSTANCE
